Gas-producing plant.



APPLIOATIoN FILED MAB.. 11. 1902. No MODEL.

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UNITED STATES PATENT GEETCE.

FREDERIC EDMUND BO'WMAN, OE MANCHESTER, ENGLAND.

GAS-PRODUCING PLANT.

SPECIFICATION forming part of Letters Patent No. 723,814, dated March 31, 1903.

Application tied nach 11,1902'. serai No. 97.756. foto man.)

To @ZZ whom it may concern:

Beit known that LFREDERICEDMUND Bow- MAN, chemist, a subject of the King of Great Britain, residing at 34 Spinningtield, Deansgate, Manchester, in the county of Lancaster, England, have invented certain new and liseful Improvements in Gas-Producing Plants, of which the following is a specification.

My invention relates to an improved arrangement and combination of gas-producing plant for use in direct communication with a gas-engine, the motive power of which is furn nished by the gas generated by the plant and drawn therefrom by the engine when at work.

The drawing represents an elevation, partly in section, of my improved arrangement of gas-producing plant in combination with a gas-engine.

In carrying my invention into effectI employ a generator consisting of a vertical metal casing 1, preferably cylindrical, lined with tire-clay 2, and below this lining is an ashpit 3, iitted with a door 4. mounted a furnace grate or plate 5 on a spindle 6, the posit-ion of the grate being controlled by a hand-lever 7, fulcrumed at S. Below the lining 2 is fitted a coil or coils of pipe 9, the ends of which are carried upward, one into the steam-space and the other into the water-space of a small boiler 10, formed at the top of the generator and provided with, preferably, Field tubes 11, which are suspended in a space heated by the furnace. The boiler is supplied with water through a feed-pipe 12, while the suplus water passes away through a curved or luted tube 13. To the top of the generator I [it a vessel 14, preferably of the same diameter'as the furnacelining 2, and at the top of this vessel is secured a hopper 15 for the supply of anthracite coal or other suitable fuel to the furnace, the vessel serving as a magazine from which the fuel will fall into the generator as required. A ring of tine gauze 16 is preferably fitted between the lining 2 and vessel 14 to prevent coal-dust, &c., passing out of the generator with the products of combustion. The 'air for combustion is preferably admitted at the bottom of a chamber 17,- for-med around the exhaust-pipe 18, close to the cylinder 19 of the gas-engine, gills 2O being cast upon the pipe to form battles and cause the air to make In this ash-pit is a tortuous passage and so absorb much heat which would otherwise be wasted. The hot air from this chamber 17 is conducted. by a'V pipe 21 to the steam-space of the boiler, and this steam-space is also connected by a pipe 22, controlled by a damper 34, to the chamber 3 below the furnace. The space below the boiler at the upper part of the generator is connected to a pipe 23, the upper part of which forms a chimney when a damper 24 is opened, while the lower end of the pipe 23 enters a vessel 25, in which is fitted a pipe 26 with a bell-mouthed opening at the bottom, which dips slightly into water contained in a tank 27, supporting a scrubber or washer 28, the bottom of which consists of a perforated plate 29. The scrubberis provided with a central pipe 30, which extends from near the top downward through the water-tank 27 into an expansion-chamber 31, connected by a pipe '32 to the cylinder 19 of the gas-engine. Y

When the re is lighted upon thergrate 5, it requires the aid of a hand or other blower (not shown) to start the tire and raise alittle steam, the damper 24 in the pipe 23 being opened to the chimney and the damper 34 in the pipe 24 being closed. When the gas produced is rich enough to burn, which can be tested by opening a valve 33 in the vessel 14 and applying a light, the fly-wheel is turned to start the gas-engine. As soon as the engine is properly started the damper 24 in the pipe 23 is closed and the damper 34 in the pipe 22 is opened, and the engine aspirates the gas from the generator and maintains combustion therein. The exhaust-gas passing away through the pipe 18 in the chamber 17 imparts its heat to the gills 20, which become very highly heated, and as the air for the generator is drawn by the suction of the engine through this chamber it absorbs the heat and passes along with the steam through the pipe 22 into the chamber 3 below the furnace, which chamber is closed and air-tight, and thence passes upward into and through the incandescent fuel in the generator,fron1 whichl it passes through the ring of'wire-gauze 16 into the space surrounding the Field tubes 11, which are thereby heated, the gas, after being washed, passing in the manner already described to the cylinder of the engine.

The furnace grate or plate '5 can be raised chamber is closed, by means of a hand-lever, an air-pipe extending from the external casing of the exhaust-pipe of the engine into the steam -space of the boiler and connections therefrom to the closed chamber of the firegrate, substantially as and for the purposes herein set forth.

In Witness whereof I have hereunto set my naine in presence of two Witnesses.

FREDERIC EDMUND BOWMAN.

Witnesses:

S. W. GILLETT, HERBERT ROWLAND ABBEY. 

